Ayla and Luke were born with wings. They've been hidden away at BioTronics's secret compound since they were found as babies, learning to fly and use their other special skills, completing endless training drills and scientific tests. When Nat, the Director's daughter and their only real friend, discovers that their training has a sinister purpose beyond BioTronics's scientific obsession, she knows she has to help the twins escape, no matter the cost…